snoop walk testdata stacktrace

+ /opt/hoover/bin/hoover snoop walk testdata
Traceback (most recent call last):
  File "/opt/hoover/snoop/manage.py", line 8, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/core/management/__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/core/management/base.py", line 294, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/core/management/base.py", line 345, in execute
    output = self.handle(*args, **options)
  File "/opt/hoover/snoop/snoop/management/commands/walk.py", line 26, in handle
    collection=collection
  File "/opt/hoover/snoop/snoop/walker.py", line 22, in walk
    self.handle(first_item, first_parent)
  File "/opt/hoover/snoop/snoop/walker.py", line 32, in handle
    self.handle_folder(item, parent)
  File "/opt/hoover/snoop/snoop/walker.py", line 61, in handle_folder
    self.handle(child, new_doc)
  File "/opt/hoover/snoop/snoop/walker.py", line 32, in handle
    self.handle_folder(item, parent)
  File "/opt/hoover/snoop/snoop/walker.py", line 61, in handle_folder
    self.handle(child, new_doc)
  File "/opt/hoover/snoop/snoop/walker.py", line 32, in handle
    self.handle_folder(item, parent)
  File "/opt/hoover/snoop/snoop/walker.py", line 61, in handle_folder
    self.handle(child, new_doc)
  File "/opt/hoover/snoop/snoop/walker.py", line 34, in handle
    self.handle_file(item, parent)
  File "/opt/hoover/snoop/snoop/walker.py", line 73, in handle_file
    'filename': path.name,
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/query.py", line 473, in get_or_create
    return self.get(**lookup), False
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/query.py", line 379, in get
    num = len(clone)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/query.py", line 238, in __len__
    self._fetch_all()
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/query.py", line 1087, in _fetch_all
    self._result_cache = list(self.iterator())
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/query.py", line 54, in __iter__
    results = compiler.execute_sql()
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 835, in execute_sql
    cursor.execute(sql, params)
  File "/opt/hoover/venvs/snoop/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
UnicodeEncodeError: 'utf-8' codec can't encode character '\udcc4' in position 24: surrogates not allowed